Thank you for reporting the issue. A fix is now available through Windows Update.
For more information, please visit our Surface Update History page.
Eddy.
Updated: 11/18/2019
Marvell Semiconductor, Inc. – Net – 15.68.17013.110 WiFi driver breaks 5GHz connection on the Surface Book (1st Gen i5 with dGPU 256 GB)
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous
The title says it all, I updated the wifi driver to "Marvell Semiconductor, Inc. – Net – 15.68.17013.110", and after that update, I can't connect to a 5GHz wifi connection, I can only connect to 2.4 GHz. when i try to connect to the 5GHz, it says: "Unable to connect to this network". Uninstalling the wifi driver, and restarting the device did help me get the 5GHz connection back to my Surface book, but when i decided to try to install the same driver again, and try to connect to 5GHz again, the same "Unable to connect to this network" appears. Does anyone have this issue?
Surface | Surface Book | Network
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Answer accepted by question author
Anonymous
131 additional answers
Sort by: Newest
-
Anonymous
2019-08-05T10:38:12+00:00 can you share the version of firmware in the Unify?
-
Anonymous
2019-08-05T10:35:13+00:00 or the Wireless Channel (which i am at number 149)
if you change the channel, any change or not?
what brand and model router? -
Anonymous
2019-08-05T02:41:53+00:00 I wanted to add that I rolled back the WiFi adapter driver to 15.68.9127.58 and all is well. I can now connect on both the 2.4GHz and 5GHz bands. I found a high number of WPA association failures in my UniFi controller logs that are likely the culprit, but I do not have the wherewithal at the moment to troubleshoot further. The old driver meets my needs. I'll let the devs sort this one out.
"I found a high number of WPA association failures in my UniFi controller logs that are likely the culprit, but I do not have the wherewithal at the moment to troubleshoot further."
Then I believe that you need to post some kind of picture or debug log here for them to see if possible
-
Anonymous
2019-08-05T02:27:52+00:00 I wanted to add that I rolled back the WiFi adapter driver to 15.68.9127.58 and all is well. I can now connect on both the 2.4GHz and 5GHz bands. I found a high number of WPA association failures in my UniFi controller logs that are likely the culprit, but I do not have the wherewithal at the moment to troubleshoot further. The old driver meets my needs. I'll let the devs sort this one out.